Air moistener



C. E. SALLADA.

AIR MOISTENER. APPLicATfoN man Aus.2. 1921.

Patented Auw. l5, 1922.

Fllt@ CLARENCE E. SALLADA, F HURON, SOUTH DAKOTA.

AIR TIOISTENER.

Application filed August 2, 1921..

To all flo/m- /t may conce/r Be it known t-hatl, CLARENCE E. SALLADA, a citizen of the United States, residing at Huron, in the county of Beadle and State of South Dakota., have invented certain new and useful Improvements in Air Moisteners, of which the following is a specificationK The object of this invention is to provide a simple and inexpensive humidifying attachment for hot air furnaces which may be readily fitted to furnaces now in use or supplied with furnaces to be installed. A further object of the invention is to provide a humidifying attachment in which the water to be vaporized may be subjected to the direct heat in the lire-box and may be supplied in any desired quantities. A further object of the. invention is to provide a humidifying attachment in which the level of the water may be automatically maintained and in which the overflowing of the water onto the material of the furnace and corroding the joints thereof will be prevented. The several stated objects, and other oh jects which will incidentally appear in the course of the following description, are attained in the use of such a device as is illustrated in the accompanying drawing, and the invention resides in certa-in novel features which will be particularlyv pointed out in the appended claims.

ln the drawing-H Figure 1 is a vertical section of a hot air furnace having my improved humidifying attachment tted thereto;

Fig. 2 is an enlarged section of the attachment g l Fig. 3 is a. detail plan view of the distributing reservoir.

The furnace may be of any desired construction and is illustrated as comprising an inner heating shell l and an outer casing 2 from which the heat-conducting liues extend, the inner heating shell 1 being provided at er near its upper end with a smoke flue extending tl'irough the outer casing and connected with the chimney of the building in the usual manner. ln carrying out my invention, l employ a boiler or generator el which may conveniently be a casting of metal andis closed except aty its top where it is provided with an internally threaded opening in which is secured the lower end of a pipe G which extends through the top 't' of the furnace. To avoid leakage of smoke and gases at the point where the Specification of Letters Patent.

Patented Aug., 15, 1922.

sei-iai No. 489,290.

said pipe passes through the furnace top, l lit upon the pipe a packing nut or collar 8 which is dished upon its upper side to receive a packing 9 of asbestos or other material. rlhe packing nut or collar bears against the under side of the furnace top, as shown clearly in Fig. 2, and over the furnace top I mount a nut 10 upon the pipe 6 which nut is turned home against the top of the furnace so as to firmly secure the pipe therein and compress the packing` so that a tight joint will be provided. The pipe extends somewhat above the nut and upon the extremity of the pipe l secure the distributing reservoir 11 which may conveniently he a metallic casting and which may be of any desired form or size. The top of this reservoir .is open and across the same entends a central supporting bar 12 which may be permanently secured to the upper edges of the reservoir in any desired manner, preferably by welding. To the said supporting bar 12, l securea canopy 13, preferably by welding, which canopy is of less diameter than the reservoir so that a space will be provided between its edge and the sides of the reservoir to permit the escape of the vapor, and the canopy is preferably formed with a concave surface on its under side so that any water which may be thrown against the same will be deflected to the sides of the reservoir and returned to the bottom thereof and prevented from flowing over the sides of the reservoir and reaching the metallic shell of the furnace to corrode the same. The distributing reservoir is provided in its front side at such a height as experience may show to be most desirable with an opening 14 in which is secured the inner end of a feed pipe 15 eX- tending through the front wall of the furnace casing 2. The front end of this feed ai 'Je 15 is connected with the receiving and overflow reservoir 16 by a coupling 17 threaded upon the front end of the pipe and upon a nipple 18 tted in and projecting through the rea-r wall of the reservoir, the coupling serving to effect a tight joint by being turned home against the wall of the reservoir, as will he readily understood upon ref` erence to Fig. 2. The reservoir 16 may be of any desired form and dimensions and is pro 'ided in its top wall with an inlet, preferably in the form of a. funnel 19, through which water may be admitted to the reservoir. Between the inlet and the rear wall 'which depends from the top of the reservoir `and termi nates between the nipple "18 andY the bottoni ol the reservoir so that the Waterv admitted to' the reservoir must illow under the edge ofl the baille or partition to reach the lee-d pipe in an obvious manner. An overllow pipe 2l iitted in the bottom oli the reservoir and may lead to a sewer or other point ol discharge and the upper end olt this overflow pipe is disposed approximately in the horizontal plane oi? the axis ot the 'feed pipe'l. ri standard 2&3 is secured upon the receiving,reservoir 1G and projects above the top ot the same, a i ialve being` supportedby the said standard or bracket in communi lation with a supply pipe 2i which` may be connected with the city "Water main or with a main supply tank if'the furnace is installed in a locality Where there isno city water system. The valve 255 may be ott any wel,l,lmoifvn vtorni and 1s coupled V1with thelpipe Slet by an elbow 1F55, the elbow starving` to etl'ectually clamp the `valve casing to the standard when the Velbour is turned home against the side ofthe standard, as will be readily understood.

It is thought the operation ol the device will be readily understood. rThe valve 23 is opened to such an extent as may be necessary to controlthe flow o'l Water and permit the Water to Vpassinto the'boiler or generator 4L with the desired rapidity. (3b vionsly, the `Water will accumulate in the reeeivine and overflow reservoir to the level ezt :the pipe l5 andthe overl-low pipe 2l and V2 and'be carriedV through the several hot air tlues to the yvarious rooms in the build ing. Should. the lire get low or be permitted to expire, the fflowol Water maybe cut oilP by closing "the valve 23,as Will be readily understood, but yit the extinguish- Yment of the lire should not be noted, the

Water Will not overflow from the distributiup,` reservoir 11 but will pass out through the overioiv pipe 21 and will thereby be prevented from `flowing konto Vthe metallic shell of the furnace and corroding the joints or Aany otherl parts oil the same, c rThe valve 23 `should be set, ofV course, togpermit the Water to drip into the receiving` and'over Y flow reservoir or to pass mtothe same in a line streanr insuch volume as may be needed to maintain "a supply oi Water in the gea erator but it should not be permitted to pass into the receiving reservoir in a greater volume than may be readily evaporated iny the normal operation .of the furnace. Obv viously, the valve may be set to adjust the flow to the vaporization so that the supply of Water will `be kept uniform in any given liiunace. When the Water is ini tially heated. and ebullition occurs, the boiling` Water will tend to gush up vfrom and `over the distributing reservoir but, when this action occurs, the `Water so thrown up will strike against the under concave suriaceof the canopy 12 and will, consequently, be prevented from passing out from the distributing,- reservoir but vvill be turnedback into the body oi Water therein, the vapor or steam, however, being permitted to escape around the edges of the canopy and mingle with the hot air flowing into the different rooms oit 'the building. f Y

My device is obviously simple in the construction and arrangement of its partsg'it may be fitted to any 'furnace now in use and may, of' course, be supplied with furnaces to be installed, and in actual practice has been found highly ellicient for the purpose :tor which it is designed.' t'inay be 'further noted thatfii the vaporiaation oil the-water occurs rapidly so thatY steaniu may pass Ythrough the feed pipe 15 into the'disi'nibui';-

inggand overflow reservoir V16 this steam will not vreach the overflowY pipe nor the supply pipe to interfere 'with the inlowing cold water but will be trapped between the rear Wall of said reservoir and the baille or partition 2O andivill be there condensed to return with the incoming` Water to be generated. `The pressure Vexerted by this trapped steam or vapor will also serve to accelerate the flow of the ieed Water .to the generator. f

lilavinn' thus described the invention, what is claimed as neviT is:

l. Av hniniditying attaclnnent lor hotr air furnaces comprising,- a generator to besupported in theI lire box `oit' the furnace, an open-top reservoir to be supported exterierly of the lire bof; of the furnace and in cornniunication with the generator, a supply pipe extending,` laterally from said open-top reservoir, a receiving reservoir-:secured on the outer end of the Vsupply pipe, and means tor supplying water in a constant retarded regulated flow to said receiving reservoir. 2. A bumiditying` attachment for hot air rfurnaces comprising a generator to be dis# posed Within thetire-box oit the -lurnace, a pipe carrying` fsaid generator, a distributing reservoir vnmunted on and in communication Vwith saidfpipe, a feedpipe entering the side oi the distributing reservoir, a receiving' reservoirconnected' with theend of said Afeed pipe, a baille depending` .trom 'the `top oit the receivingreservoir in spaced relation to the feed pipe and terminating between the end of said feed pipe and the bottom of the reservoir, an overflow pipe leading from the bottom of the said reservoir, and means for supplying water through the top of the reservoir in regulated quantities.

fr liumidifying attachment for hot air furnaces comprising a generator to be supported within the fire-box of the furnace, a ipe carrying said generator and incommunication therewith, a distributing reservoir on said pipe having an open top, a baffle supported in the upper end of said diS- tributing reservoir and having its edges spaced from the side walls of the reservoir, a feed pipe entering one side of said reservoir, a receiving reservoir connected with Said feed pipe, a baffle within the receiving reservoirdepending from the top of the saine and having its lower end disposed between the end of the feed pipe and the bottom of the reservoir, an overflow pipe leading through the bottom of said reservoir in advance of the said baffle, an inlet in the top of the reservoir, the baffle being disposed between said inlet and the end of the feed pipe, and means for supplying water to said inlet in regulated quantities.

et. The combination with the body of a hot air furnace, of a pipe extending through the top of said body, a generator secured on the lower end of said pipe and in communication therewith and supported thereby in the fire-box of the furnace, a dished nut mounted on said pipe against the under side of the top of the furnace, packing fitted in the dished portion of said nut around the pipe, a lock nut mounted on said pipe and turned home against the top of the furnace body', a distributing reservoir secured upon the upper end of the said pipe and open thereto, a baille in the upper portion of the said distributing reservoir spaced' from all the sides thereof, a feed pipe entering the front wall of said reservoir, a receiving reservoir connected with the front end of said feed pipe, and means for supplying water to the receiving reservoir in regulated quantities.

5. A humidifying attachment for hot-air .1

furnaces comprising a generator to be supported in the fire-box of the furnace, an open-top reservoir to be supported eX- teriorly of the fire-box of the furnace and in communication with the generator, a baffle supported in the top vof the reservoir with its edges spaced from the sides of the reservoir, and means for supplying water to said reservoir.

6. A humidifying attachment for hot-air furnaces comprising a generator to be supported in the tire-box of the furnace, a distributing reservoir to be supported eX- teriorly of the fire-box Aand in communication with the generator, a receiving reservoir in communication with the distributing reservoir, means for supplying water to the receiving reservoir in regulated quantities, and a battle in the receiving reservoirV preventing direct flow of water to the distributing reservoir.

In testimony whereof I aflix my signature.

CLARENCE E. SALLADA. [n s] 

